Showerhead



FIG. 1 is a perspective view of a showerhead showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side perspective view thereof;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a side view thereof.

The broken line shown represents portions of a showerhead and form nopart of the claimed design.

CLAIM The ornamental design for a showerhead, as shown and described.